Synthesis and tunable blue–green color emission and energy transfer of Ce3+, Tb3+ co-doped BaZrSi3O9 phosphors

Liu, Shiqi; Liang, Yujun; Zhu, Yongwei; Xu, Rui; Wang, Shijin; Wang, Song

doi:10.1007/s10854-016-5378-4

Cited by 8 publications

(5 citation statements)

References 35 publications

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“…The phosphor crystallites have diverse sizes and non‐uniform shapes (Figure a). The bulk crystals share tight surfaces without voids, which can be expected for high temperature solid‐state reaction products and these result confirm an earlier report, as can be seen in the higher magnification image (Figure b).…”

Section: Resultssupporting

confidence: 91%

“…In the present work, we aimed to make a Cr 3+ ‐doped silicate‐based material with efficient broad NIR emission at room temperature, and which may find applications in solar energy conversion. Several efficient phosphors using the BaZrSi 3 O 9 (BZS) matrix have been reported recently such as BZS:Eu 2+ , BZS:R 3+ (R = Eu, Sm, Dy, Tb and Pr), BZS:Bi 3+ , BZS:Ce 3+ and BZS:Ce 3+ ,Tb 3+ . The BZS type silicate possesses a rigid crystal structure, which consists of a corner‐shaped trisilicate (Si 3 O 9 ) group ring and share an edge with trigonally distorted the BaO 6 and ZrO 6 octahedron .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

et al. 2017

Luminescence

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The BaZrSi O :Cr phosphors were prepared by a high temperature solid state method. Their structures were confirmed with XRD and their luminescence properties were investigated. Under excitation at 455 nm, BaZrSi O :Cr phosphors exhibited a broad near infrared emission band peaked at 800 nm, which was assigned to the T → A transition of Cr . The near infrared emission intensity reached a maximum at Cr concentration of 0.7%. There was a concentration quenching phenomenon of Cr in BaZrSi O matrix and the corresponding concentration quenching mechanism was investigated. With efficient near infrared emission in the range of 700-1000 nm, BaZrSi O :Cr phosphors may find applications in solar energy conversion.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

et al. 2017

Luminescence

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“…5 D 3 ). The band in the near UV region (378 nm) has the maximum intensity, which is a common character comparing with other reported Tb 3+ -activated phosphors (Liu et al, 2016;Xiong et al, 2015). The PL spectrum of K 2 Tb 1.5 Ta 0.5 (PO 4 ) 3 for 378 nm excitation is composed of four bands: 489 ( 5 D 4 !…”

Section: Figuresupporting

confidence: 70%

A new disordered langbeinite-type compound, K₂Tb_1.5Ta_0.5P₃O₁₂, and Eu³⁺-doped multicolour light-emitting properties

et al. 2019

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For the first time, a new langbeinite‐type phosphate, namely potassium terbium tantalum tris(phosphate), K2Tb1.5Ta0.5(PO4)3, has been prepared successfully using a high‐temperature flux method and has been structurally characterized by single‐crystal X‐ray diffraction. The results show that its structure can be described as a three‐dimensional open framework of [Tb1.5Ta0.5(PO4)3]∞ interconnected by K+ ions. The TbIII and TaV cations in the structure are disordered and occupy the same crystallographic sites. The IR spectrum, the UV–Vis spectrum, the morphology and the Eu3+‐activated photoluminescence spectroscopic properties were studied. A series of Eu3+‐doped phosphors, i.e. K2Tb1.5–xTa0.5(PO4)3:xEu3+ (x = 0.01, 0.03, 0.05, 0.07, 0.10), were prepared via a solid‐state reaction and the photoluminescence properties were studied. The results show that under near‐UV excitation, the luminescence colour can be tuned from green through yellow to red by simply adjusting the Eu3+ concentration from 0 to 0.1, because of the efficient Tb3+→Eu3+ energy‐transfer mechanism.

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“…It was noticed that η T values were increased gradually with the increase of Tb 3+ concentration. The largest energy transfer efficiency of 78% was realized for y = 0.40, which was found to be higher than that of the similar reported silicate phosphors, such as (58.09%) BZS:0.04Ce 3+ ,0.10Tb 3+ , (64.03%) Y 4 Si 2 O 7 N 2 :0.005Ce 3+ ,0.4Tb 3+ , (51%) K 2 MgSi 3 O 8 :0.05Ce 3+ ,0.09Tb 3+ , (16%) MgY 4 Si 3 O 13 :0.01Ce 3+ ,0.3Tb 3+ , and (76%) BaMg 2 Al 6 Si 9 O 30 :0.05Ce 3+ ,0.13Tb 3+ . All of the features of PL spectra and energy transfer efficiency proved the occurrence of energy transfer from Ce 3+ to Tb 3+ in a BGSO host.…”

Section: Resultsmentioning

confidence: 60%

Tunable Luminescence and Energy Transfer in Novel Blue-Green-Emitting BaGd₂Si₃O₁₀:Ce³⁺,Tb³⁺ Phosphors for Near-UV-Based White LEDs

Rajagopal

Huang

2019

ACS Omega

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A new series of Ce3+ singly doped and Ce3+/Tb3+-co-doped BaGd2Si3O10 (BGSO) phosphors have been synthesized by a high-temperature solid-state reaction technique. The phase purity, luminescence properties, energy transfer mechanism, internal quantum efficiency, and thermal stability of as-prepared phosphors were investigated in detail. The photoluminescence spectra of BGSO:xCe3+ phosphors exhibited broad emission in the wavelength range of 350–600 nm with a peak maximum at 427 nm. Under 336 nm excitation, the tunable blue-green luminescence of BGSO:0.04Ce3+,yTb3+ phosphors was investigated as a function of Tb3+ concentration and well demonstrated by the energy transfer mechanism from Ce3+ to Tb3+ ions. The critical distance (R c) of energy transfer was estimated using concentration quenching method, and its value was found to be 10.75 Å. The thermal stability and activation energy of thermal quenching were analyzed for composition-optimized BGSO:0.04Ce3+,0.30Tb3+ phosphors by varying the temperature from 303 to 483 K. The results obtained from the present investigation suggested that Ce3+- and Ce3+/Tb3+-activated BGSO phosphors can serve as promising materials for near-UV-based phosphor-converted white light-emitting diodes.

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Synthesis and tunable blue–green color emission and energy transfer of Ce3+, Tb3+ co-doped BaZrSi3O9 phosphors

Cited by 8 publications

References 35 publications

Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

A new disordered langbeinite-type compound, K₂Tb_1.5Ta_0.5P₃O₁₂, and Eu³⁺-doped multicolour light-emitting properties

Tunable Luminescence and Energy Transfer in Novel Blue-Green-Emitting BaGd₂Si₃O₁₀:Ce³⁺,Tb³⁺ Phosphors for Near-UV-Based White LEDs

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Synthesis and tunable blue–green color emission and energy transfer of Ce3+, Tb3+ co-doped BaZrSi3O9 phosphors

Cited by 8 publications

References 35 publications

Synthesis and luminescence of novel near‐infrared emitting BaZrSi3O9:Cr3+ phosphors

Synthesis and luminescence of novel near‐infrared emitting BaZrSi3O9:Cr3+ phosphors

A new disordered langbeinite-type compound, K2Tb1.5Ta0.5P3O12, and Eu3+-doped multicolour light-emitting properties

Tunable Luminescence and Energy Transfer in Novel Blue-Green-Emitting BaGd2Si3O10:Ce3+,Tb3+ Phosphors for Near-UV-Based White LEDs

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Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

Synthesis and luminescence of novel near‐infrared emitting BaZrSi₃O₉:Cr³⁺ phosphors

A new disordered langbeinite-type compound, K₂Tb_1.5Ta_0.5P₃O₁₂, and Eu³⁺-doped multicolour light-emitting properties

Tunable Luminescence and Energy Transfer in Novel Blue-Green-Emitting BaGd₂Si₃O₁₀:Ce³⁺,Tb³⁺ Phosphors for Near-UV-Based White LEDs